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Product Overview
The CD74HC238MT from Texas Instruments is a high-speed CMOS 3-to-8 line decoder/demultiplexer. It is designed for memory decoding and data routing applications in digital systems. The device features three address inputs (A0, A1, A2), three enable inputs (E1, E2, E3), and eight active-low outputs (Y0–Y7). It operates over a wide supply voltage range of 2V to 6V, making it suitable for battery-powered and industrial applications. The 16-SOIC package ensures compact footprint for space-constrained designs.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2V to 6V |
| Input Voltage (VI) |
0V to VCC |
| Output Current (IO) |
±5.2 mA |
| Propagation Delay (tpd) |
15 ns (typical at 5V) |
| Operating Temperature |
-55°C to +125°C |
| Package |
16-SOIC |
| Logic Family |
HC |
| Number of Outputs |
8 (active low) |
| Enable Inputs |
3 (E1, E2, E3) |
Key Features
- Wide operating voltage range: 2V to 6V
- High noise immunity: typical 30% of VCC
- Low power consumption: 80 µA max ICC
- Balanced propagation delays: tPLH ≈ tPHL
- Standardized symmetrical output characteristics
- Compatible with LSTTL logic levels
- ESD protection exceeds 2000V per MIL-STD-883
Target Applications
- Memory decoding in 5G base station control boards
- Address decoding in automotive dashboard displays
- Data routing in industrial PLCs
- Demultiplexing in portable medical devices
- Logic expansion in IoT gateways
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
CD74HC238MT. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
CD74HC238MT 是德州儀器(TI)的一款高速 CMOS 3-8 線解碼器/多路分配器。它專為數字系統中的存儲器解碼和數據路由應用而設計。該器件具有三個地址輸入(A0、A1、A2)、三個使能輸入(E1、E2、E3)和八個低電平有效輸出(Y0–Y7)。它可在 2V 至 6V 的寬電源電壓範圍內工作,適用於電池供電和工業應用。16-SOIC 封裝確保了空間受限設計的緊湊尺寸。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2V 至 6V |
| 輸入電壓 (VI) |
0V 至 VCC |
| 輸出電流 (IO) |
±5.2 mA |
| 傳播延遲 (tpd) |
15 ns(典型值,5V 時) |
| 工作溫度 |
-55°C 至 +125°C |
| 封裝 |
16-SOIC |
| 邏輯系列 |
HC |
| 輸出數量 |
8(低電平有效) |
| 使能輸入 |
3(E1、E2、E3) |
核心特性
- 寬工作電壓範圍:2V 至 6V
- 高抗噪能力:典型值為 VCC 的 30%
- 低功耗:最大 ICC 80 µA
- 平衡傳播延遲:tPLH ≈ tPHL
- 標準化對稱輸出特性
- 與 LSTTL 邏輯電平兼容
- ESD 保護超過 2000V(符合 MIL-STD-883)
典型應用場景
- 5G 基站控制板中的存儲器解碼
- 汽車儀表盤顯示中的地址解碼
- 工業 PLC 中的數據路由
- 便攜式醫療設備中的多路分配
- 物聯網網關中的邏輯擴展
環球供應鏈與批發合作夥伴方案
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